package scu.maqiang.cte;

import java.io.FileWriter;
import java.io.IOException;
import java.util.Arrays;

import scu.maqiang.fes.BVPType;
import scu.maqiang.fes.FES1L21;
import scu.maqiang.fes.FES1L2CTE;
import scu.maqiang.mesh.Mesh1L2;
import scu.maqiang.mesh.ScalarFunc;
import scu.maqiang.mesh.Tecplot;
import scu.maqiang.numeric.Direct;
import scu.maqiang.numeric.MVO;
import scu.maqiang.numeric.NewIterSSolver;
import scu.maqiang.numeric.SRMatrix;

public class RectangleResultL2_DC2 {

	public static void main(String[] args) {
				double kxx = 1.0, density = 1.0, specificHeat = 1.0;
				double E = 2.0, Nu = 0.3, alpha = 0.05;
				double beta = E / (1 - 2 * Nu)  * alpha;

				double theta = 0.5, T = 1.5e1, dt = T / 1500;
				double omega = 0.25;

				Mesh1L2 mesh2D = new Mesh1L2();
				mesh2D.line(0, 1.0, 100);

				FES1L21 ffs = new FES1L21(mesh2D);

				FES1L2CTE fs = new FES1L2CTE(mesh2D, ffs);

				SRMatrix L = new SRMatrix(fs.GetNdof());
				SRMatrix R = new SRMatrix(fs.GetNdof());
				SRMatrix ElasticMass = new SRMatrix(ffs.GetNdof());
				SRMatrix HTEMatrix = new SRMatrix(ffs.GetNdof(), ffs.GetNdof());

				double[] x = new double[fs.GetNdof()];
				double[] RHS = x.clone();

				double[] temp = new double[ffs.GetNdof()];
				double[][] dispUV = new double[2][ffs.GetNdof()];

				double[] totalDisp = new double[ffs.GetNdof()];
				double[] totalDisp0 = totalDisp.clone();
				double[] vel = totalDisp.clone();
				double[] vel0 = totalDisp.clone();
				double[] acc = totalDisp.clone();
				double[] acc0 = totalDisp.clone();

				double[] ex = temp.clone();
				double[] ey = temp.clone();
				double[] exy = temp.clone();
				double[] ez = temp.clone();
				double[] tx = temp.clone();
				double[] ty = temp.clone();
				double[] txy = temp.clone();

				double MM = E * (1 - Nu) / ((1 + Nu) * (1 - 2 * Nu));
				double TRef = 8.0 * 35.0 / 13.0;
				double AA = MM + TRef * beta * beta / (density * specificHeat);
				System.out.println("A = " + AA);
				System.out.println("M = " + MM);

				ScalarFunc initTemp = (xy, label, param) -> xy[0] > 0.999999? 1.0:0.0;
				double[] Itemp = ffs.valueFromFunc(initTemp, null);
				ffs.assembleMass(new double[]{density}, BVPType.CONSIST_MASS, ElasticMass);
				fs.assembleHeatToElastic(beta, BVPType.COMMON, HTEMatrix);
				HTEMatrix.mul(Itemp, totalDisp);
				NewIterSSolver solver = new NewIterSSolver(ElasticMass);
				solver.PCGSSOR(totalDisp, acc, 1.5, 1);
				Arrays.setAll(acc0, i -> acc[i]);
				double[] coef = {density, specificHeat, kxx, TRef, theta, E, Nu, beta, dt, omega};
				fs.assembleDierctCouplingMatrix_Type2(coef, BVPType.COMMON, BVPType.CONSIST_MASS,
						BVPType.COMMON, BVPType.CONSIST_MASS, BVPType.COMMON, L, R);
				//L.sort();
				//System.out.println(L);

				fs.applyBCHeat_MBN(L, 2);
				fs.applyBCDisp_MBN(L, Direct.All, 1);
				//System.out.println(L);
				solver.setMatrix(L);
				double time = 0.0;
				double[] RHS1 = new double[fs.GetNdof()];

				int lineNum = 100;
				double dis = 1.0 / lineNum;
				double[] lineX = new double[lineNum + 1];
				double[] lineY = lineX.clone();

				Arrays.setAll(lineX, i -> i * dis);
				String dir = "RectangleResultL2\\";
				String XYLineFile = dir + "Line150_2.dat";
				Tecplot.lineXYTime(XYLineFile, lineX, lineY, 0.0);

				String heatFile = dir + "Heat150_2.dat";
				mesh2D.toTecplot(heatFile, 0.0, x);

				String deformFile =  dir + "Deform150_2.dat";
				mesh2D.toTecplotDeform(deformFile, 0.0, dispUV, 0.0);

				String expansionFile = dir + "expansion150_2.dat";
				String temp00File = dir + "temp00_150_2.dat";
				FileWriter fw1 = null;
				FileWriter fw2 = null;
				try {
					fw1 = new FileWriter(expansionFile);
					fw2 = new FileWriter(temp00File);
					fw1.write("0.0\t0.0\n");
					fw2.write("0.0\t0.0\n");
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
				while(time < T) {
					time += dt;
					System.out.println("time: " + time);
					fs.applyBCHeat_MBN(RHS, 1.0, 2);
					fs.applyBCDisp_MBN(RHS, Direct.All, 0.0, 1);
					solver.PCGSSSOR(RHS, x, 1.5, 1);
					fs.extractUVH(x, temp, dispUV);
					mesh2D.toTecplot(heatFile, time, temp);
					System.out.println("T min: " + MVO.min(temp)  + "\t max: " + MVO.max(temp));
					System.out.println("U min: " + MVO.min(dispUV[0]) + "\t max: " + MVO.max(dispUV[0]));

					for(int i = 0, n = ffs.GetNdof(); i < n; i++) {
						totalDisp[i] = dispUV[0][i];
					}

					Arrays.setAll(acc, i -> 1/(omega*dt*dt) * (totalDisp[i] - totalDisp0[i]) -1/(omega * dt) * vel0[i] - (0.5 /omega - 1) * acc0[i]);
					Arrays.setAll(vel, i -> vel0[i] + ((1-0.5) * acc0[i] + 0.5 * acc[i]) * dt);

					Arrays.setAll(acc0, i -> 1/(omega*dt) * vel[i] + (0.5/omega -1) * acc[i]);
					ElasticMass.mul(acc0, vel0);
					for(int i = 0, n = ffs.GetNdof(); i < n; i++) {
						RHS1[i] = vel0[i];
					}

					R.mul(x, RHS);
					Arrays.setAll(RHS, i -> RHS[i] + RHS1[i]);
					Arrays.setAll(acc0, i -> acc[i]);
					Arrays.setAll(vel0, i -> vel[i]);
					Arrays.setAll(totalDisp0, i -> totalDisp[i]);

		    mesh2D.toTecplot(heatFile, time, temp);
		    mesh2D.toTecplot(deformFile, time, dispUV[0]);
		    Arrays.setAll(dispUV[0], i -> dispUV[0][i] * (1-Nu) / (alpha * (1 + Nu)));
	        Tecplot.lineXYTime(XYLineFile, lineX, dispUV[0], time);
	        try {
	        	fw1.write(time + "\t " + dispUV[0][100] * (1-Nu)/(alpha * (1 + Nu))  + "\n");
				fw2.write(time + "\t " + temp[0] + "\n");
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
	    }
	    
	    try {
	    	fw1.flush();
			fw1.close();
			fw2.flush();
			fw2.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

}
